Objective
- weigh out PVAC ribbons and soak in 20 ppm Malachite Green and UV-vis in 10 min increments
- Prepare dried PVAC ribbons for pXRD and DSC
- Begin new bead synthesis for PVAC
Protocol
- The Malachite Green solution was made and after UV-vis was found to be at a concentration of 20.2ppm
- Dilution of .5mL of 20ppm into 5mL for a total concentration of 2ppm total to be measured with UV-vis
- 1.4163g of PVAC ribbons were placed into 10 mL of 20ppm Malachite Green Solution
- DSC preparation
- Tzero Pan weight: 0.04192g
- Tzero Pan and PVAC ribbons weight: 0.04494g
- Tzero Pan, PVAC ribbons and Lid weight: 0.05539g
- Total weight of PVAC ribbons in pan: 3.02mg
- pXRD Preparation: Take dried PVAC ribbons and condense them onto a pXRD plate
- New Bead Synthesis
- Weigh out 0.5020g of PVA and 0.0565g of Montmorillonite clay into 6mL of 10% HCl stir over heat until everything is dissolved
- Add 20mL Ethyl Acetate and 0.75mL of glutaraldehyde to a beaker with a stir bar and spin the solution
- Start Adding the PVAC solution drop wise to the ethyl acetate and glutaraldehyde
- After about 3 minutes add another 0.75mL of glutaraldehyde to the solution
- Once the finished adding the PVAC solution, add 25mL of sodium bicarbonate
- Centrifuge the sample at 3000rpm at 4 degrees celsius for one minute
- Note: After centrifugation there seemed to be a suspension of two different levels of bead separation, so the two were extracted separately and stored in different vials in water
pXRD
- Madeleine 2
- James 3
- Tami 4
- Eleni 5
DSC
- Madeleine 22
- James 23
- Tami 24
- Eleni 25
Data
- UV-Vis of PVAC Ribbon absorptions of Malachite Green
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